Effect of different seed rate and row spacing on growth, yield attributes and yield of Indian mustard under irrigated condition

Abstract

A field experiment was carried out during Rabi season of 2024-25 at Research cum Instructional Farm, S.G.C.A.R.S, Jagdalpur, to find out the effect of different seed rate and row spacing on growth, yield attributes and yield of Indian mustard under irrigated condition. Experiment was laid out in factorial Randomized Complete Block Design involving four levels of seed rate viz., 3 kg ha-1, 4 kg ha-1, 5 kg ha-1 and 6 kg ha-1 and three different row spacings i.e. 25 cm, 35 cm and 45 cm replicated thrice. Lowest seed rate 3 kg ha-1 resulted significantly highest growth characteristics which was remain numerically at par with 4 kg seed rate ha-1 viz., Number of primary branches (3.06 plant-1) but highest and lowest plant population m-2 was recorded with 6 kg and 3 kg seed rate ha-1 respectively, yield attribute and yield included number of siliquas palnt-1 (80.00), number of grains siliqua-1 (12.28) was recorded highest with 3 kg seed rate per hectare, but grain yield (2151.11 kg ha-1) and economics indicated the B: C ratio (2.48) was resulted highest with 4 kg seed rate ha-1. Among various row spacing widest row spacing 45 cm resulted considerably the highest growth parameters viz., number of primary branches plant-1 (3.01 Plant-1), but highest and lowest plant population m-2 was recorded with 25 cm and 45 cm row spacing respectively, yield attribute and yield included number of siliquas plant-1(70.00), number of grains siliqua-1 (11.85) was recorded highest with 45 cm row spacing, but grain yield (1967.50 kg ha-1) and benefit cost ratio was (2.17) was recorded maximum with 35 cm row spacing.